Title :
Systematic design of EMI-filters for power converters
Author :
Nagel, A. ; De Doncker, R.W.
Author_Institution :
ABB Corp. Res., Heidelberg, Germany
Abstract :
EMI-filters are often designed by trial and error. To take guesswork out of filter design, a systematic approach is described in this paper. The design procedure is divided into three steps: (1) measurement of the impedance and amplitude spectrum of the noise source; (2) determination of the sink impedance; (3) calculation of the filter component values to fulfil a given limit curve with least costs for the overall filter. Using this design procedure, the filter topology, the filter order and the component values are determined to provide a lowest cost EMI-filter design
Keywords :
electric impedance measurement; electromagnetic interference; filters; interference suppression; power convertors; EMI-filters design; filter component values calculation; filter order; filter topology; impedance measurement; noise source amplitude spectrum; power converters; sink impedance determination; Attenuation; Circuit noise; Costs; Equivalent circuits; Filters; Frequency; Impedance measurement; Noise level; Noise measurement; Transfer functions;
Conference_Titel :
Industry Applications Conference, 2000. Conference Record of the 2000 IEEE
Conference_Location :
Rome
Print_ISBN :
0-7803-6401-5
DOI :
10.1109/IAS.2000.883177
